Home / 786,820.80-1,180,231.20-779,822.40

Finding the Fourth Proportional to 786,820.80, 1,180,231.20 and 779,822.40

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Solution

The fourth proportional to 786,820.80, 1,180,231.20 and 779,822.40 is: 1,169,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,820.80 : 1,180,231.20 = 779,822.40 : x
  2. Step 2: Convert to fraction form
    786,820.80/1,180,231.20 = 779,822.40/x
  3. Step 3: Cross multiply
    786,820.80x = 1,180,231.20 × 779,822.40
  4. Step 4: Simplify right side
    786,820.80x = 920,370,726,938.88
  5. Step 5: Solve for x
    x = 920,370,726,938.88/786,820.80
  6. Step 6: Final answer
    x = 1,169,733.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.